IPhone : Getting "expression resolves to an unused function" error after updating XCode

I keep getting the error, "cannot assign to 'scrollview' in 'self'" when trying to initialize scrollview (For the scrollview = UIScrollView() line in the convenience init). This error was never here until I updated to XCode 6.3. I have been stuck for hours and am sure I am just missing something dumb. Any direction would be appreciated.

required init(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)

    // Setup the scrollview
    scrollview = UIScrollView()
    scrollview.showsHorizontalScrollIndicator = false
    scrollview.showsVerticalScrollIndicator = false
    scrollview.pagingEnabled = true

    // Controllers as empty array
    controllers = Array()

}

convenience init() {
  self.init()
    scrollview = UIScrollView()
    controllers = Array()
}